exercise will help weight loss more then a very low calorie diet - as you've mentioned. bet you would be better with the 1,200 or 1,300 recommended if you where to just walk briskly for 3 miles a day.good luck to you.

well 3,500 calories = 1 pound. so by having 500 calories less per day thats 1 pound a week 1,000 less is 2 pounds a week. they say 1% of your body weight is a safe amount to lose per week.

you said 1 mile got you tired. so start slow.but then idk maybe 15 minutes would be good, by a month you might feel like 30 would be ok. go with what feels good - you will see you will find you will want to do it after a month or two!!i started walking 1 mile a day 15 minutes, after 2 wks or a month i did 2 miles (30 minutes) a day, now i do walk/jog 3 to 5 miles (1 hr) a day (sometimes i add a second 2 mile walk at night and i did this from month 2 on).honestly i think the extra activity helped me out the most, losing weight.

fiber one cereal is very filling. so is go lean crunch. both ave a good amount of fiber.

i do baby carrots for a snack often. with the walden farms thousand island dressing which claims to be 0 calorie. sometimes a fat free slice of mozzarella.

fruit works well too.

i was doing the celery in salsa for a while.

a good 200 calorie snack/meal is boca burgers a tiny spray of pam olive oil with dill weed and garlic powder. (70 cal burger - 9 cal spray or thats how i count it)with a whole wheat english muffin (120 cals) works well. a decent amount of fiber and protien.

the olean chips taste just as good in my opinion and like half the cals i don't know if they make doritoes though...